2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Supplementary Classification Of External Causes Of Injury And Poisoning E800-E999 > Accidents Due To Natural And Environmental Factors E900-E909 > Accident Due To Hunger Thirst Exposure And Neglect E904.* > 2008 ICD-9-CM Diagnosis E904.2 Accident due to lack of water  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM E904.2 can be accessed here. E904.2 is a specific code that can be used to specify a diagnosis View the ICD-9-CM Volume 1 E904.* hierarchy ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog. E904.2 also known as: Lack of water as the cause of: dehydration inanition E904.2 excludes: dehydration due to acute fluid loss (276.51)